CMSC11 Lab 11 - Practice on map and filter

11-lab-11-lists-map-filter.md

CMSC11 Lab Exercise 11 – Lists

Create the following functions. Don’t forget the design recipe! I’ll be looking for the following:

• Signature, purpose, stub
• Examples
• Template

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1. Create a function bump_up that accepts a list of grades and returns the list with 20% added to each grade

2. Create a function cold that accepts a list of temperatures in Celsius and returns only those below 20 degrees

3. Create a function gmail_only that accepts a list of email addresses and returns a list of only those addresses that end with "@gmail.com"

4. Create a function long_names that, given a list of names, returns a list of all names longer than 8 characters

5. Create a function can_afford, that Prof. Cheapskate can use to determine which items to buy at the University Bookstore. He will only buy individual items that are less than 100 pesos. But because he's a Professor, he gets a 5% discount for all items at the bookstore. can_afford should take a list of prices (before discount), and produce a list of prices that he can afford with the discount applied.